pat lawson muse with reaction from former president bill clinton. pat? >> yes, former president clinton says he's lost a true friend today. also, he says, quote, history will remember nelson mandela as a champion of dignity and f freedom. we will remember him as a man of grace and compassion for whom abandoning bitterness and embracing adversaries. back to you. >> thanks so much. we'll have continuing coverage, of course, and reaction of his death throughout the night and online at www.nbcwashington.com. we'll also have a full hour long special edition of "nightly news" following our broadcast. >>> now to other news and a developing local story. the d.c. police department is being rocked by not one but two scandals. three police officers are under investigation tonight. one officer was arrested earlier this week and facing charges of child pornography. a third officer has been disciplined. news 4s mark segraves is following this developing story from outside u.s. district court. mark? >> reporter: doreen, that's right. one officer charged with taking por